Hondata S300 Engine Management System v.3 - USDM ECU Socketed into P28 ECU

Engine Computer (ECU) which vastly expands the capabilities of the factory ECU. Forced induction, datalogging, real time updating of parameters, engine protection are but a few of the s300 features

Main features:

• Fits inside the ECU
• USB connection for speed and compatibility
• SManager Windows based software for parameter & table editing, calibration uploading and datalogging.
• Real-time updating of ECU parameters & tables.
• Built in calibrations for common engine combinations
• Built in datalogging to a laptop
• On board datalogging memory (8 MB memory, 20-240 minutes datalogging) with trigger conditions.
• Adjustment for different sized injectors, with overall fuel trim.
• Configurable for any MAP sensor (to at 5 Bar and above)
• TPS based table lookup for ITBs
• Engine protection from over boost.
• Expanded fuel and ignition tables, both in rpm and load, to 60 lbs boost and 11,000 rpm (these are not the upper limits)
• Launch control with anti-lag
• Full throttle shift
• Three multi purpose outputs for nitrous control or similar
• Supports lambda tracing from a wideband o2 (PLX wideband recommended)
• PWM output for boost control with fixed or gear based boost.
• Dual tables for high/low octane calibrations etc.
• Two analog inputs for wideband, EGTs etc.
• High and low speed 24 x 20 ignition and fuel tables for correct VTEC tuning
• Injector size fuel trim
• Fuel trim for starting, throttle tip in and individual cylinder trim
• Rev limiter with fuel cut or fuel and ignition cut
• Launch control with anti-lag
• Full throttle shift
• Adjustable VTEC window with load and throttle control
• Secondary intake runner control
• Adjustable idle speed
• Adjustable boost cut with hot and cold settings
• Shift light
• Closed loop control
• Air temperature compensation
• Water temperature compensation
• Fuel and ignition correction based on gear
• A/C shutoff conditions
• Closed loop
• Three general purpose outputs for nitrous control, quad boost control or similar

The s300 uses different connecting pins in the ECU from the s100/s200, and also has a slot cut in the side for the USB connector, so the ECU must be modified for use with the s300. 

New features for Version 2:

• 8 analog inputs.(datalogging only)
• 1 digital input. (datalogging only)
• Additional security to help identify and prevent theft
• Datalogging memory doubled in size for up to 2 hours recording.
• Non battery memory backup for greater reliability and longer life.
• On board calibration storage.